Method of treating a wellbore at high temperature in contact with carbon dioxide
US8183183B2 · kind B2 · utility
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21References
25Claims
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Key dates
| Filing date | Jun 23, 2010 |
| Grant date | May 22, 2012 |
| Priority date | — |
| Expiry date | Jul 7, 2030 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S507/904
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A method for treating a subterranean formation is made of steps of providing a composition comprising a carrier fluid, a polymer viscosifying agent, carbon dioxide and a formate salt or formic acid; injecting into a wellbore, the composition; contacting the composition with the subterranean formation, wherein the temperature is above 100 degrees Celsius at this contact; and allowing the composition to treat the subterranean formation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.